Salmonella. Escherichia coli. These once feared bacterias have joined the forces of good to sanitize your hands as fancy soaps.

These petri dish bar soaps—modeled after some of the most infamous microbes growing on their various permutations of agar—are not only gorgeous recreations of heinous living minutia; they're a sure-fire means to ensure that no guest in your house dares wash their hands (leading to a good deal of free soap-matching decor if you play your cards right.) $7.50 and up. [Makers Market via technabob]